Microstructure and corrosion properties of MnCrFeCoNi high entropy alloy-graphene oxide composite coatings

被引：56
作者：
Aliyu, Ahmed [1 ]
Srivastava, Chandan [1 ]
机构：
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India
来源：
MATERIALIA | 2019年 / 5卷
关键词：
High entropy alloys; Graphene oxide; TEM; Corrosion; Microstructure; Coating; ELECTROCHEMICAL-BEHAVIOR; ENHANCED CORROSION; NI; STEEL; POLARIZATION; ATTACHMENT; RESISTANCE; SURFACE; DNA;
D O I：
10.1016/j.mtla.2019.100249
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Microstructure and corrosion properties evaluation of MnCrFeCoNi high entropy alloys (HEA) composite coatings containing five different graphene oxide (GO) amounts was conducted. The HEA coatings were electrodeposited over mild steel substrate. The corrosion resistance properties of the HEA and HEA-GO composite coatings determined using potentiodynamic polarization and electrochemical impedance spectroscopy tests conducted in 3.5% NaCl solution revealed that with the addition of GO the corrosion resistance of the coating increased. Detailed microstructural characterization using the electron microscopy technique showed that GO enhanced the amount of Mn and Cr in the coatings leading to higher corrosion resistance.
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页数：13
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